Evaluate
\frac{257}{60}\approx 4.283333333
Factor
\frac{257}{2 ^ {2} \cdot 3 \cdot 5} = 4\frac{17}{60} = 4.283333333333333
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\frac{245}{60}+\frac{12}{60}
Least common multiple of 12 and 5 is 60. Convert \frac{49}{12} and \frac{1}{5} to fractions with denominator 60.
\frac{245+12}{60}
Since \frac{245}{60} and \frac{12}{60} have the same denominator, add them by adding their numerators.
\frac{257}{60}
Add 245 and 12 to get 257.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Linear equation
y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}